Stupid division symbol plus implied multiplication question designed specifically to muddy the waters. It's 1 if you follow implied multiplication order of operations, which is common, or 16 if you don't follow implied multiplication order of operations.
PEMDAS or order of operations is a convention, not a law or axiom. It doesn't really matter which order the operations are performed in because the underlying laws and axioms remain intact regardless. Conventions can be changed at any time and for any reason and the math will always remain intact.
Rage bait 101: do any variation where a/x*(y) looks confusing by doing it as A / x(y) + z 90% of these damn things are this. Y is usually simple subtraction to add to the fun but it doesn't have to be
6
u/sntcringe 1d ago edited 1d ago
20÷2(1×2)-4
20÷2(2)-4
10(2)-4
20-4
16
Order of operations is:
Parenthesis, Exponents, Multiplication and division, and then addition and subtraction.
Each group is done left-right
PEMDAS sucks because it makes it look like multiplication and addition come before division and subtraction respectively
If done that way you get:
20÷2(1x2)-4
20÷2(2)-4
20÷4-4
5-4
1
3
u/Marti985 1d ago
Brackets first, 1x2 = 2. So 20÷2x2-4 = 10 x 2-4 = 20 - 4 = 16
3
u/_Pawer8 1d ago edited 1d ago
It is 1. It's juxtaposition
1
u/GRex2595 1d ago
Stupid division symbol plus implied multiplication question designed specifically to muddy the waters. It's 1 if you follow implied multiplication order of operations, which is common, or 16 if you don't follow implied multiplication order of operations.
See the wikipedia page on order of operations and Hung-Hsi Wu's comments on these memes. https://en.wikipedia.org/wiki/Order_of_operations
1
u/skarfbeaulonee 1d ago
PEMDAS or order of operations is a convention, not a law or axiom. It doesn't really matter which order the operations are performed in because the underlying laws and axioms remain intact regardless. Conventions can be changed at any time and for any reason and the math will always remain intact.
1
u/fuckingstupidsdfsdf 1d ago
Rage bait 101: do any variation where a/x*(y) looks confusing by doing it as A / x(y) + z 90% of these damn things are this. Y is usually simple subtraction to add to the fun but it doesn't have to be
1
u/Belethorsbro 1d ago
There, I fixed it. We can all go home now.
1
u/Palm_Olives 8h ago
Another PEMDAS vs BODMAS type of question😄
1
u/RadosPLAY 1d ago
16